bild

Teacher Christophe Blanc gives an economics lesson in his class in front of pictures of his students at the private school "Ecole Ardevaz" during the spread of the pandemic Coronavirus (COVID-19) disease in Sion, Switzerland, Wednesday, April 29, 2020. (KEYSTONE/Jean-Christophe Bott) Le professeur Christophe Blanc, donne un cours d'economie dans une classe de l'Ecole Ardevaz devant les photos de ses eleves pendant la crise du Coronavirus (Covid-19) le mercredi 29 avril 2020 a Sion. (KEYSTONE/Jean-Christophe Bott)